If you are looking for a defensive round that will not over penetrate walls, check out MagSafe Super SWAT rounds. This example in .45 ACP has a 68 grain pre fragmented bullet that goes down range at 2260 fps, and comes in an 8 round package. MagSafe's revolutionary design uses large lead shotgun pellets rather than solid lead for a bullet's core. MagSafe rounds won't overpenetrate a torso and hurt or kill innocent bystanders and have reduced ricochet potential. MagSafe Ammo is faster, recoils less, and stops attackers faster than any other ammunition in the world.